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    • 97. 发明授权
    • Hand held power tool
    • 手持电动工具
    • US06938587B2
    • 2005-09-06
    • US10396938
    • 2003-03-25
    • Benjamin J. ThomasKenneth M. BrazellTaku Ohi
    • Benjamin J. ThomasKenneth M. BrazellTaku Ohi
    • F02B63/02F02P13/00A47L5/14
    • F02P13/00F01N1/00F01N2590/06F02B63/02F02D2400/22
    • A power tool including a main section and a handle section. The main section includes an internal combustion engine and a housing at least partially surrounding the engine. The engine includes a cylinder, a spark plug, and a muffler. The handle shaft extending from the main section. The shaft forms a handle for the power tool and houses a drive shaft from the engine therein. The housing forms a cover section over a transmission assembly between the engine and the drive shaft. The cover section includes a scroll form to channel air flow pushed by the transmission assembly. The housing further comprises a spark plug boot to substantially prevent air from exiting the housing at the spark plug.
    • 一种电动工具,包括主要部分和手柄部分。 主要部分包括内燃机和至少部分围绕发动机的壳体。 发动机包括气缸,火花塞和消音器。 手柄轴从主体部分延伸。 轴形成用于动力工具的手柄并且容纳来自其中的发动机的驱动轴。 壳体在发动机和驱动轴之间的变速器组件上形成盖部分。 盖部分包括用于引导由传动组件推动的空气流的涡旋形式。 壳体还包括火花塞罩,以基本上防止空气在火花塞处离开壳体。